string(304) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%B8%AD%E5%8D%8E%E4%BC%9A%E8%AE%A1%E7%BD%91%E6%A0%A1%E4%B8%AD%E7%BA%A7vip%E7%AD%BE%E7%BA%A6%E7%8F%AD%E7%9A%84%E9%80%9A%E8%BF%87%E7%8E%87 => Failed to connect to 61.171.74.35 port 38041: Connection refused"
中华会计网校中级vip签约班的通过率
